Helder was aiming to form 'smiley face' UW-Stout student tells officer of pattern to targets Associated Press Last Updated: May 9, 2002 Reno, Nev - The 21-year-old Wisconsin college student accused of putting pipe bombs in mailboxes in five states told authorities he was trying to make a "smiley face" pattern on the map with his targets, a sheriff said Thursday. The first 16 bombs were arranged in two circles, one in Illinois and Iowa and the other in Nebraska. On a map, the circles could resemble the eyes of the 1970s happiness symbol. The final two bombs, found in...